I am trying to design a 3-bit counter circuit with jk flip flops that count from 0 to 7 with a clock signal and remain constant at 7 until reset. Counter counts well but it stops at six not seven.
Can you guys help me please.
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Sign up to join this communityI am trying to design a 3-bit counter circuit with jk flip flops that count from 0 to 7 with a clock signal and remain constant at 7 until reset. Counter counts well but it stops at six not seven.
Can you guys help me please.
You're asynchronously resetting your first FF when you get to seven. As soon as you're at 6 and flip to 7, the output of U4A resets bit 0, and you go back to 6. Disconnect U1 pin 3 (or tie high, but I note you're not driving the other set/reset lines, so I assume it's TTL or has internal pullups). Then it'll work the way you want.